Process for dyeing nitrogen-containing fiber materials with mixtures of 1:2 metal complex azo and acid dyestuffs

ABSTRACT

PROCESS FOR DYEING NITROGEN-CONTAINING FIBRE MATERIALS WITH ACID DYESTUFFS AND 1:2 METAL COMPLEX DYESTUFFS IN THE PRESNCE OF AMINES CONTAINING GLYCOL ETHER GROUPS, CHARACTERISED IN THAT COMPOUNDS OF FORUMLA   R-N(-R1)-(CH2-CH2-O)M-(CH2)2-SO3-M   IN WHICH R REPRESENTS A C12-C22-ALKYL, C12-C22 ALKENYL OR C12-C22-CYCLOALKYL RADICAL, R1 REPRESENTS A METHYL GROUP OR ONE OF THE GROUPINGS   -(CH2-CH(-R2)-O)N-H, OR -(CH2-CH(-R2)-O)N-(CH2)2-SO3-M   R2 REPRESENTS HYDROGEN, OR A METHYL, ETHYL OR PHENYL GROUP, M DENOTES A CATION, AND THE SUM M+N DENOTES A NUMBER FROM 5-70, WITH THE PROVISO THAT AT LEAST 80% OF THE ALKYLENE OXIDE UNITS CONTAINED IN THE MOLECULE ARE ETHYLENE OXIDE UNITS, OR THEIR QUATERNISATION PRODUCTS OF FORMULA   R-N(+)(-R1)(-R3)-(CH2-CH(-R2)-O)M-(CH2)2-SO3(-)   IN WHICH R, R1, R2, M AND N HAVE THE ABOVEMENTIONED SIGNIFICANCE AND R3 REPRESENTS AN OPTIONALLY SUBSTITUTED C1-C8-ALKYL GROUP OR ARALKYL GROUP, ARE USED AS AMINES CONTAINING GLYCOL ETHER GROUPS.

United States Patent M 3,684,427 PROCESS FOR DYEENG NITROGEN-CONTAINING FIBER MATERIALS WITH MIXTURES OF 1:2 METAL COMPLEX AZO AND ACID DYESTUFFS Klaus Walz, Leverkusen, Manfred Baecker, Bleclrer, and Mathieu Quaedvlieg, Opladen, Germany, assignors to Farbenfabriken Bayer Aktiengesellschaft, Leverkusen, Germany No Drawing. Filed Aug. 3, 1970, Ser. No. 60,737 Claims priority, application Germany, Aug. 7, 1969, P 19 40 178.6 Int. Cl. D06p 1/10 U.S. Cl. 8--26 6 Claims ABSTRACT OF THE DISCLOSURE Process for dyeing nitrogen-containing fibre materials with acid dyestuffs and 1:2 metal complex dyestuffs in the presence of amines containing glycol ether groups, characterised in that compounds of formula R-I I(oH,-(JH0),,0Hr-om-s01M in which R represents a C -C -alkyl, (I -C alkenyl or C -c -cycloalkyl radical, R represents a methyl group or one of the groupings R represents hydrogen, or a methyl, ethyl or phenyl group, M denotes a cation, and the sum m+n denotes a number from -70, with the proviso that at least 80% of the alkylene oxide units contained in the molecule are ethylene oxide units, or their quaternisation products of formula in which R, R R m and n have the abovementioned I significance and R represents an optionally substituted C -C -alkyl group or aralkyl group, are used as amines containing glycol ether groups.

in which R represents a C -c -alkyl, a C -C -alkenyl OI Cm-Cggcycloalkyl radical,

3,684,427 Patented Aug. 15, 1972 R represents a methyl group or one of the grouping:

R represents hydrogen or a methyl, ethyl or pheny group,

M denotes a cation, and the sum m+ru is a number fron 5-70, preferably 15-50, with the proviso that at leas of the alkylene oxide units contained in the mole cule are ethylene oxide units,

or their quaternisation products of formula in which R, R R m and n have the abovementioned significance and R represents an optionally substituted C -C -alky1 grou or aralkyl group,

are used as amines containing glycol ether groups.

For R, the dodecyl, tetradecyl, hexadecyl, octadecyl eicosyl and docosyl radicals may for example be men tioned as C -C -alkyl radicals, and as C -C -a1keny radicals especially the octadecenyl radical. Possible C C -cycloalkyl radicals are above all the abietyl radical Possible cations for M are especially the alkali ions such as the sodium and potassium ion, the alkaline earti ions, such as the calcium and magnesium ion, and the am monium ions, such as the ammonium ion or the am monium ions which are derived from monoethanolamine diethanolamine and triethanolamine.

For R lower alkyl groups, such as the methyl, ethyl n-propyl, i-propyl or sec.-butyl group, and also alkyl radi cals substituted by a hydroxyl, carboxyl, lower carbalkox o: carbonamide group, such as the 2-hydroxyethyl, l-hy droxypropyl-Z, carboxymethyl, carbethoxymethyl and car bonamidomethyl radical, may above all be mentioned a optionally substituted C -C -alkyl groups. Possible option ally substituted aralkyl radicals are, above all, the benzyl 4-methylbenzyl, 4-chlorobenzyl and the phenoxyethy radical.

Products of the reaction of alkylene oxides, especiall ethylene oxide or mixtures of ethylene oxide and up t( 20% of higher alkylene oxides, such as propylene oxide butylene oxide or styrene oxide, with primary or second ary amines or such tertiary amines as contain a hydroxy group serve as starting materials for the compounds to b used according to the invention. As amines, there may to: example be mentioned: dodecylamine, tetradecylamine hexadecylamine, octadecylamine, arachylamine, oleyl amine, abietylamine, hexadecylmethylamine, octadecyl methylamine, N [5 hydroxyethyl]-methyl-hexadecyl amine, N [B hydroxyethyl]-methyl-octadecylamine, N [B-hydroxypropyl]-methyl-octadecylamine and N-[Z-hy droxy-2-phenyl-ethyl] -methyl-octadecenylamine.

As representatives of the amines containing glycol ethe: groups, ortheir quaternisation products, to be used ac cording to the invention, the compounds of Formulae I 3 1d II in which R, R R m and M have the significance dicated in the table which follows may be mentioned:

polyacrylonitriles, but especially natural polyamides, such as wool and silk. The process is also suitable for dyeing 1 a a M m m+1s H3: CH3 H Na 26 51133.. r CH3 H CH5-CONH1 11 5- (CH2CH1O)1: H H 3113s.- Hz H CH:CONH1 H -(CH:GH;O) nCHgCH2SOaNa H -CH3 CH H CH2CON OH: H -on,on,orr

-(CHgCHaO)nH H GH COON3 CH 4.2% CH3, 95.8% H CH2CONHI a a1.---:;'.".'.' -(CHgCHaO)nH CHs The manufacture of the compounds to be used accordmixtures of these nitrogen-containing fiber materials with g to the invention can take place in accordance with :ocesses which are in themselves known. Thus the alkrylation products can be converted into the correspondig alcoholates by means of sodium or sodium methylate 1d subsequently be reacted, using chlorethanesulphonic 7 bromethanesulphonic acid to give the sulphonate. The )mpounds can be manufactured more simply if the rminal hydroxyl group of the polyglycol ether chain is inverted into esters of inorganic acids, such as those of ydrochloric, hydrobromic or hydriodic acid or of suliuric acid, or into esters of organic sulphonic acids, such a of benzenesulphonic or toluenesulphonic acid, and [656 are then reacted with sodium sulphite at elevated mperature, appropriately at 80-150 C. I

The quaternisation which is optionally to be carried at can be effected in a known manner with customary drylating agents, such as, for example, methyliodide, tmethyl sulphate, ethyl bromide, diethyl sulphate, ethylie chlorhydrin, sodium chloracetate, chloracetic acid iethyl ester, chloracetamide or benzyl chloride.

The dyeing of the textile materials which can be dyed ith acid dyestuffs and 1:2 metal complex dyestuffs, in re presence of the compounds of Formula I and II to a used in accordance with the invention, can be carried ut by introducing the goods to be dyed into a liquor armed to 4050 C., which contains the acid dyestufis ad/or the 1:2 metal complex dyestuffs, thecompounds E Formulae I or II to be used according to the invenon, and acids, for example acetic acid, and then gradally raising the temperature of the dyebath to 100-130 and maintaining the bath at this temperature until it exhausted. It has proved advantageous to pretreat the nods to be dyed with an aqueous liquor which only con- LlllS compounds of Formula I or of Formula II and :ids, for a short time at 40-50 C. and only then to :ld the dyestuifs to the liquor at temperatures between 0 and 98 C., subsequently to raise the temperature of re dyebath gradually to 100-130 C. and to maintain 1e bath at this temperature until it is exhausted.

The amounts in which the compounds to be used ac- )lding to the invention are added to the dyebaths can ary within wide limits; they can be easily determined y preliminary experiments. In general, amounts of .253, preferably 0.5-1, percent by weight, relative to re weight of the goods to be dyed, have proved success- 11.

The dyeing process is suitable for all nitrogen-containig fiber materials which can be dyed with acid dye- :uifs and 1:2 metal complex dyestuffs, such as synthetic olyamides, for example hexamethylenediadipate, poly-e1 aprolactam, poly-w-aminoundecane-acid, basic-modified other fiber materials, for example those of native and regenerated cellulose, polyacrylonitrile or polyesters.

With the aid of the compounds of Formulae I and II to be used according to the invention it is possible to dye textile materials which can be dyed with acid dyestufls and 1:2 metal complex dyestuffs, in the most diverse processing forms, for example as flocks, tops texturised yarns, spinning tow, yarn, woven fabrics, knitted fabrics or fleece with excellent uniformity using acid dyestuffs and 1:2 metal complex dyestuffs. The advantage of the compounds to be used according to the invention relative to the hitherto known levelling agents consists of the fact that they are suitable both for dyeing with acid dyestulfs and for dyeing with 1:2 metal complex dyestuffs and that therefore nitrogen-containing textile materials can be dyed with a single auxiliary agent even when using combinations of acid dyestufis and 1:2v metal complex dyestufi's, without leading to edge elfects of the 1:2. metal complex dyestuifs and hence to non-uniform dyeings.

The parts indicated in the examples which follow are parts by weight. 7

EXAMPLE 1 Hanks of woolyarn are introduced at 50 C. using a. liquor ratio of 1:30, into a dyeing liquor which per litre contains 2 g. of sodium sulphate (calcined), 1 g. of glacial acetic acid, 0.13 g. of 1:2 chromium complex of the azo dyestuff anthranilic acid- 1-phenyl-3-methyl-5-pyrazolone and 0.3 g. of the product A described below. The dyebath is heated to C. over the course of 30 minutes and is subsequently kept at this temperature for 30 minutes. 0.05 g. of dyestutf of formula 0 N 1 HaN are then added to the dyebath which is heated to 100 C. for a further 30 minutes. In spite of the feeding of dyestufi at the boil, an excellent uniform green dyeing is obtained.

The product A employed had been obtained as follows:

320 parts of a reaction product of 56 parts of methylstearylamine and 264 parts of ethylene oxide were mixed with 23 parts of amidosulphonic acid and stirred for 5 hours at 90 C. After adding 52 parts of anhydrous sodium sulphite and parts of water the mixture was stirred for 24 hours in an autoclave at 120-130 C. The reaction product was separated from the aqueous phase at 70-80" C., concentrated in vacuo in order to remove water and salts completely, and taken up in ethanol. After filtering ofi the salt and distilling off the alcohol, the salt-free product remained. 1

An equivalent green dyeing was also obtained if instead of the auxiliary agent employed, the same amount of one of the products B or C described was used.

Product B had been obtained as follows:

45 parts of the anhydrous and salt-free product A were mixed with 3.4 parts of benzyl chloride and stirred for hours at 90-100 C.

Product C had been obtained as follows:

40 parts of the anhydrous and salt-free product A were mixed with 2.2 parts of chloracetamide and stirred for hours at 90l00 C.

EXAMPLE 2 Worsted wool yarn wound on cheeses is treated for 5-10 minutes, using a liquor ratio of 1:15 with a liquor which per litre contains 2 g. of sodium sulphate (calcined) and 1 g. of glacial acetic acid. The liquor is heated to 100 C. over the course of about minutes and 0.6 g. of the product A described in Example 1 are then added to the dyebath at this temperature, followed after a further 5 minutes by 0.7 g. of the 1:2 chromium complex of the azo dyestuff 2-amino-4-ethylsulphonylphenol 1 ethylsulphonylamino 7 hydroxy naphthalene. Dyeing is carried out for 60 minutes at the boil and though the dyestuif which in acid solution is diflicult to level Was added at the boil an excellent uniform grey dyeing was obtained.

EXAMPLE 3 Polyhexamethylenediamineadipate yarn is treated for about 10 minutes at 50 C., using a liquor ratio of 1:15, with a liquor which per litre contains 0.3 g. of trisodium phosphate, 0.6 g. of the product D described below and 0.7 g. of the 1:2 chromium complex of the azo dyestuif 2 amino 4 ethylsulphonylphenol l-ethylsulphonylamino-7-hydroxy-naphthalene. The dyebath is heated to 100 C. over the course of 15 minutes and maintained at this temperature for 60 minutes. An excellent uniform grey dyeing is obtained.

The product D used had been obtained as follows:

116 parts of a reaction product of 327 parts of N [hydroxyethyl]-methyl-stearylamine and 840 parts of ethylene oxide were mixed with 11.5 parts of amidosulphonic acid and stirred for 5 hours at 90 C. The reaction mixture was mixed with parts of anhydrous sodium sulphite and 70 parts of water and stirred for 12 hours at 130-135 C. in an autoclave. After completion of the reaction, the mixture was cooled to 90 C., and the organic phase was separated oif, mixed with 12.5 parts of benzyl chloride and stirred for 5 hours at 90 C. The resulting product, which still contains water, gives a clear solution in water.

An equivalent grey dyeing was also obtained if instead of the auxiliary agent D employed the same amount of the auxiliary agent E described below was used.

Product E had been obtained as follows:

137 parts of a product obtained by reaction of 269 parts of stearylamine with 1,100 parts of ethylene oxide were mixed with 11.5 parts of amidosulphonic acid at 90 C. and stirred for 5 hours at 90 C. The reaction mixture was treated with 25 parts of anhydrous sodium sulphite and 70 parts of water and stirred for 15 hours at 135 C. in an autoclave. The organic phase was then separated ofl, freed of remnants of water in vacuo, mixed with 12 parts of benzyl chloride and stirred for 5 hours at 90 C. On dissolving the reaction product in alcohol, separating ofif the salt and distilling off the alcohol, a salt-free product was obtained, which gave a clear solution in water.

EXAMPLE 4 A liquor which per litre contains 2 g. of sodium sulphate (calcined), 0.8 g. of glacial acetic acid, 0.5 g. of dyestuif of formula NaOaS Na OaS 0.25 g. of 1:2 chromium complex of the azo dyestufi anthranilic' acidl-phenyl-3-methyl-5-pyrazolone and 0.5 g. of the product C described in Example 1 is introduced into an open, round dyeing apparatus. After heating the liquor to 50 C., a material carrier filled with loose wool is introduced into the dyeing appaartus. The amount of wool isv so chosen that a liquor ratio of 1:20 results. The dyebath is heated to C. over the course of 45 minutes andkept at this temperature for 60 minutes. An excellent uniform yellow-green dyeing is obtained.

An equally uniform yellow-green dyeing was obtained if instead of the product C employed, the same amount of one of the products A or B described in Example 1 or of one of the products F or G described below was used.

Product F had been obtained as follows:

318 parts of the reaction product of 267 parts of oleylamine with 1,320 parts of ethylene oxide were stirred for 5 hours at 90100 C. with 20 parts of urea and 41 parts of amidosulphonic acid. The reaction mixture was mixed with a solution of 102 parts of anhydrous sodium sulphite in 460 parts of water and stirred for 12 hours in an autoclave at ;130 C. The reaction product was freed of water in vacuo and freed of the salt by extraction with methanol. After distilling off the methanol, the reaction product was mixed with 18 parts of chloracetamide and stirred for 10 hours at 90-100 C. A product which gave a clear solution in water was obtained.

Product G had been obtained as follows:

332 parts of a product which had been obtained by reaction of 56 parts of methylstearylamine with 12 parts of propylene oxide and subsequently with 264 parts of ethylene oxide, were mixed with 23 parts of amidosulphonic acid and stirred for 5 hours at 90 C. After adding 52 parts of anhydrous sodium sulphite and parts of water, the mixture was stirred for 24 hours in an autoclave at 120l30 C. The reaction product was separated from the aqueous phase at 80 C., subsequently mixed with 18.7 parts of chloroacetamide, and stirred for 10 hours at 90 C. In order to remove water and salts completely, the product was concentrated in vacuo and taken up in methanol. After filtering off the salt and distilling off the methanol, a water-soluble, salt-free and anhydrous product remained.

EXAMPLE 5 A woven wool fabric which had been dyed unevenly with 2.5% of the 1:2 chromium complex of the azo dyestuff 2-amino-4-ethylsulphonyl-phenol l-ethylsulphonylamino7-hydroxynaphthalene, is treated for 45 minutes at the boil, on a winch, using a liquor ratio of 1:40, with a liquor which per litre contains 2 g. of sodium sulphate (calcined), 0.7 g. of glacial acetic acid, 0.07 g. of the above mentioned 1:2 chromium complex dyestuff and 0.25 g. of the product A described in Example 1. As a result of this treatment, the previously unevenly dyed woven wool fabric is completely levelled.

We claim:

1. Process for dyeing nitrogen containing fiber material with a 1:2 metal complex dyestuff, an acid dyestufl or a mixture of 1:2 metal complex dyestufi and acid dyestufif in the presence of an amine containing glycol ether group in which said amine containing glycol ether group consists essentially of a compound of the formula in which R is C -C -alkyl, C -C -alkenyl or C -C -cycloa1ky1; 15

R is methyl,

R is hydrogen, methyl, ethyl, or phenyl;

M is a cation;

the sum of m=+n is 5-70, with the proviso that at least 80% of the al-kylene oxide units contained in the molecule are ethylene oxide units. 2. The process of claim 1 in which R is C -C -alkyl or C -C -alkenyl; R is hydrogen; and the sum of m and n is 15 to 50.

3. The process of claim 1 in which the nitrogen containing fiber material is a natural polyamide. H

4. The process of claim 1 in which the dyestufi is a 1:2 metal complex dyestutf or a mixture thereof with an acid dyestuff. H

5. The process of claim 1 in which the dyestuff is a mixture of a 1:2 metal complex dyestutf and an acid dyestulf.

6. The fiber dyed by the process of claim 1.

References Cited UNITED STATES PATENTS 3,529,922 9/1970 Berger et al.' 8'-54 2,963,513 12/1960 Albrecht 888 X 3,307,901 3/1967 Bindler et a1. 884 X GEORGE F. LESMES, Primary Examiner T. J. HERBERT, JR., Assistant Examiner US. Cl. X.R. 

